Operation CHARM: Car repair manuals for everyone.

Brake Warning Indicator

The brake warning indicator lights under any of the following conditions:
^ The master cylinder senses a low brake fluid level.
^ The park brake switch is closed (park brake is set).
^ The EBCM senses a base brake failure.
^ Class 2 communication has been lost between the instrument cluster and the EBCM.
^ The 3 second bulb test is occurring.